Large surface area, 3D structured transparent electrodes with effective light management capability may represent a key component in the development of new generation optoelectronic and energy harvesting devices. We present an approach to obtain forest-like nanoporous/hierarchical Al-doped ZnO conducting layers with tunable transparency and light scattering properties, by means of room temperature Pulsed Laser Deposition in a mixed Ar:O2 atmosphere. The composition of the background atmosphere during deposition can be varied to modify stoichiometry-related defects, and therefore achieve control of electrical and optical properties, while the total background pressure controls the material morphology at the nano- and mesoscale and thus the light scattering properties. This approach allows tuning electrical resistivity over a very wide range (10- 1 - 106 Ω cm), both in the in-plane and cross-plane directions. Optical transparency and haze can also be tuned by varying the stoichiometry and thickness of the nano-forests.

Tuning electrical properties of hierarchically assembled Al-doped ZnO nanoforests by room temperature Pulsed Laser Deposition / Gondoni, P.; Mazzolini, P.; Russo, V.; Diani, M.; Amati, M.; Gregoratti, L.; DE RENZI, Valentina; Gazzadi, G. C.; Martí Rujas, J.; Li Bassi, A.; Casari, C. S.. - In: THIN SOLID FILMS. - ISSN 0040-6090. - ELETTRONICO. - 2015:594 Part A(2015), pp. 12-17. [10.1016/j.tsf.2015.09.066]

Tuning electrical properties of hierarchically assembled Al-doped ZnO nanoforests by room temperature Pulsed Laser Deposition

DE RENZI, Valentina;
2015

Abstract

Large surface area, 3D structured transparent electrodes with effective light management capability may represent a key component in the development of new generation optoelectronic and energy harvesting devices. We present an approach to obtain forest-like nanoporous/hierarchical Al-doped ZnO conducting layers with tunable transparency and light scattering properties, by means of room temperature Pulsed Laser Deposition in a mixed Ar:O2 atmosphere. The composition of the background atmosphere during deposition can be varied to modify stoichiometry-related defects, and therefore achieve control of electrical and optical properties, while the total background pressure controls the material morphology at the nano- and mesoscale and thus the light scattering properties. This approach allows tuning electrical resistivity over a very wide range (10- 1 - 106 Ω cm), both in the in-plane and cross-plane directions. Optical transparency and haze can also be tuned by varying the stoichiometry and thickness of the nano-forests.
2015
2015
594 Part A
12
17
Tuning electrical properties of hierarchically assembled Al-doped ZnO nanoforests by room temperature Pulsed Laser Deposition / Gondoni, P.; Mazzolini, P.; Russo, V.; Diani, M.; Amati, M.; Gregoratti, L.; DE RENZI, Valentina; Gazzadi, G. C.; Martí Rujas, J.; Li Bassi, A.; Casari, C. S.. - In: THIN SOLID FILMS. - ISSN 0040-6090. - ELETTRONICO. - 2015:594 Part A(2015), pp. 12-17. [10.1016/j.tsf.2015.09.066]
Gondoni, P.; Mazzolini, P.; Russo, V.; Diani, M.; Amati, M.; Gregoratti, L.; DE RENZI, Valentina; Gazzadi, G. C.; Martí Rujas, J.; Li Bassi, A.; Casari, C. S.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1118618
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